*
* $Id$
*
- * This code is Copyright (c) 2002, by the authors of nmh. See the
+ * This code is Copyright (c) 2002, 2008, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include <h/mh.h>
+#include <h/crawl_folders.h>
#include <h/utils.h>
#include <errno.h>
static int total_folders = 0; /* total number of folders */
-static int start = 0;
-static int foldp = 0;
-
static char *nmhdir;
static char *stack = "Folder-Stack";
static char folder[BUFSIZ];
-#define NUMFOLDERS 100
-
-/*
- * This is how many folders we currently can hold in the array
- * `folds'. We increase this amount by NUMFOLDERS at a time.
- */
-static int maxfolders;
-static char **folds;
-
/*
* Structure to hold information about
* folders as we scan them.
/*
* static prototypes
*/
-static void dodir (char *);
static int get_folder_info (char *, char *);
+static crawl_callback_t get_folder_info_callback;
static void print_folders (void);
static int sfold (struct msgs *, char *);
-static void addir (char *);
-static void addfold (char *);
-static int compare (char *, char *);
static void readonly_folders (void);
done (0);
}
- /* Allocate initial space to record folder names */
- maxfolders = NUMFOLDERS;
- folds = mh_xmalloc (maxfolders * sizeof(char *));
-
/* Allocate initial space to record folder information */
- maxFolderInfo = NUMFOLDERS;
+ maxFolderInfo = CRAWL_NUMFOLDERS;
fi = mh_xmalloc (maxFolderInfo * sizeof(*fi));
/*
/*
* If no folder is given, do them all
*/
- /* change directory to base of nmh directory for dodir */
+ /* change directory to base of nmh directory for crawl_folders */
if (chdir (nmhdir) == NOTOK)
adios (nmhdir, "unable to change directory to");
if (!argfolder) {
admonish (NULL, "no folder given for message %s", msg);
readonly_folders (); /* do any readonly folders */
strncpy (folder, (cp = context_find (pfolder)) ? cp : "", sizeof(folder));
- dodir (".");
+ crawl_folders (".", get_folder_info_callback, NULL);
} else {
strncpy (folder, argfolder, sizeof(folder));
if (get_folder_info (argfolder, msg)) {
* we still need to list all level-1 sub-folders.
*/
if (!frecurse)
- dodir (folder);
+ crawl_folders (folder, get_folder_info_callback, NULL);
}
} else {
strncpy (folder, argfolder ? argfolder : getfolder (1), sizeof(folder));
return 1;
}
-/*
- * Base routine for scanning a folder
- */
-
-static void
-dodir (char *dir)
-{
- int i;
- int os = start;
- int of = foldp;
-
- start = foldp;
-
- addir (dir);
-
- for (i = start; i < foldp; i++) {
- get_folder_info (folds[i], NULL);
- fflush (stdout);
- }
-
- start = os;
- foldp = of;
-}
-
static int
-get_folder_info (char *fold, char *msg)
+get_folder_info_body (char *fold, char *msg, boolean *crawl_children)
{
int i, retval = 1;
struct msgs *mp = NULL;
* for folder information
*/
if (total_folders >= maxFolderInfo) {
- maxFolderInfo += NUMFOLDERS;
+ maxFolderInfo += CRAWL_NUMFOLDERS;
fi = mh_xrealloc (fi, maxFolderInfo * sizeof(*fi));
}
folder_free (mp); /* free folder/message structure */
}
- if (frecurse && (fshort || fi[i].others) && (fi[i].error == 0))
- dodir (fold);
+ *crawl_children = (frecurse && (fshort || fi[i].others)
+ && (fi[i].error == 0));
+ return retval;
+}
+
+static boolean
+get_folder_info_callback (char *fold, void *baton)
+{
+ boolean crawl_children;
+ get_folder_info_body (fold, NULL, &crawl_children);
+ fflush (stdout);
+ return crawl_children;
+}
+
+static int
+get_folder_info (char *fold, char *msg)
+{
+ boolean crawl_children;
+ int retval;
+
+ retval = get_folder_info_body (fold, msg, &crawl_children);
+
+ if (crawl_children) {
+ crawl_folders (fold, get_folder_info_callback, NULL);
+ }
+
return retval;
}
}
-static void
-addir (char *name)
-{
- char *prefix, *child;
- struct stat st;
- struct dirent *dp;
- DIR * dd;
- int child_is_folder;
-
- if (!(dd = opendir (name))) {
- admonish (name, "unable to read directory ");
- return;
- }
-
- if (strcmp (name, ".") == 0) {
- prefix = getcpy ("");
- } else {
- prefix = concat (name, "/", (void *)NULL);
- }
-
- while ((dp = readdir (dd))) {
- /* If the system supports it, try to skip processing of children we
- * know are not directories or symlinks. */
- child_is_folder = -1;
-#if defined(HAVE_STRUCT_DIRENT_D_TYPE)
- if (dp->d_type == DT_DIR) {
- child_is_folder = 1;
- } else if (dp->d_type != DT_LNK && dp->d_type != DT_UNKNOWN) {
- continue;
- }
-#endif
- if (!strcmp (dp->d_name, ".") || !strcmp (dp->d_name, "..")) {
- continue;
- }
- child = concat (prefix, dp->d_name, (void *)NULL);
- /* If we have no d_type or d_type is DT_LNK or DT_UNKNOWN, stat the
- * child to see what it is. */
- if (child_is_folder == -1) {
- child_is_folder = (stat (child, &st) != -1 && S_ISDIR(st.st_mode));
- }
- if (child_is_folder) {
- /* addfold saves child in the list, don't free it */
- addfold (child);
- } else {
- free (child);
- }
- }
-
- closedir (dd);
- free(prefix);
-}
-
-/*
- * Add the folder name into the
- * list in a sorted fashion.
- */
-
-static void
-addfold (char *fold)
-{
- register int i, j;
-
- /* if necessary, reallocate the space for folder names */
- if (foldp >= maxfolders) {
- maxfolders += NUMFOLDERS;
- folds = mh_xrealloc (folds, maxfolders * sizeof(char *));
- }
-
- for (i = start; i < foldp; i++)
- if (compare (fold, folds[i]) < 0) {
- for (j = foldp - 1; j >= i; j--)
- folds[j + 1] = folds[j];
- foldp++;
- folds[i] = fold;
- return;
- }
-
- folds[foldp++] = fold;
-}
-
-
-static int
-compare (char *s1, char *s2)
-{
- register int i;
-
- while (*s1 || *s2)
- if ((i = *s1++ - *s2++))
- return i;
-
- return 0;
-}
-
/*
* Do the read only folders
*/
projects / mmh / blobdiff